<template>
  <div class="home-category">
    <ul class="menu">
      <li class="menuli" v-for="i in list" :key="i.id" @mouseenter="liEnter(i)">
        <template v-if="i.children">
          <RouterLink to="/">{{ i.name }}</RouterLink>
          <RouterLink v-for="item in i.children" :key="item.id" to="/">{{
            item.name
          }}</RouterLink>
        </template>
        <!-- 骨架屏 -->
        <template v-else>
          <RouterLink to="/">{{ i.name }}</RouterLink>

          <XtxSkeleton
            width="60px"
            height="18px"
            style="margin-right:5px"
            bg="rgba(255,255,255,0.2)"
          />
          <XtxSkeleton width="50px" height="18px" bg="rgba(255,255,255,0.2)" />
        </template>

        <div class="layer">
          <h4>分类推荐 <small>根据您的购买或浏览记录推荐</small></h4>
          <!-- 品牌 -->
          <ul v-if="currItem.id === 'brand'">
            <li class="brand" v-for="i in brandList" :key="i.id">
              <RouterLink to="/">
                <img :src="i.picture" alt="" />
                <div class="info">
                  <p class="place">
                    <i class="iconfont icon-dingwei"></i>{{ i.place }}
                  </p>
                  <p class="name ellipsis">{{ i.name }}</p>
                  <p class="desc ellipsis-2">{{ i.desc }}</p>
                </div>
              </RouterLink>
            </li>
          </ul>
          <!-- 弹层,非品牌 -->
          <ul v-else>
            <li v-for="sub in i.goods" :key="sub.id">
              <RouterLink to="/">
                <img :src="sub.picture" alt="" />
                <div class="info">
                  <p class="name ellipsis-2">
                    {{ sub.name }}
                  </p>
                  <p class="desc ellipsis">{{ sub.desc }}</p>
                  <p class="price"><i>¥</i>{{ sub.price }}</p>
                </div>
              </RouterLink>
            </li>
          </ul>
        </div>
      </li>
    </ul>
  </div>
</template>

<script>
import { computed, ref } from 'vue'
import { useStore } from 'vuex'
import { homeBrand } from '@/api/home'
export default {
  name: 'HomeCategory',
  setup () {
    const store = useStore()
    const list = computed(() => {
      console.log(store.state.category.list)
      const _tempArr = store.state.category.list.map(item => {
        if (item.children) {
          return {
            ...item,
            children: item.children.slice(0, 2)
          }
        } else {
          return item
        }
      })
      return [
        ..._tempArr,
        {
          name: '品牌',
          id: 'brand',
          children: [
            {
              name: '品牌推荐',
              id: 'brand_children'
            }
          ]
        }
      ]
    })

    // 移入li
    const currItem = ref('')
    const brandList = ref([])
    function liEnter (i) {
      currItem.value = i
      //   如果是品牌就调用接口获取品牌数据
      if (i.id === 'brand' && brandList.value.length === 0) {
        // homeBrand().then(res => {
        //   // console.log(res)
        //   brandList.value = res.result
        // })
        store.dispatch('home/getBrandList').then(res => {
          brandList.value = res.slice(0, 6)
        }).catch(error=>{
          console.log(error);
        })
      }
    }
    return { list, liEnter, currItem, brandList }
  }
}
</script>

<style scoped lang="less">
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      &.menuli {
        padding-left: 40px;
      }
      height: 50px;
      line-height: 50px;
      &:hover {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }

      .layer {
        width: 990px;
        height: 500px;
        background: rgba(255, 255, 255, 0.8);
        position: absolute;
        left: 250px;
        top: 0;
        display: none;
        padding: 0 15px;
        h4 {
          font-size: 20px;
          font-weight: normal;
          line-height: 80px;
          small {
            font-size: 16px;
            color: #666;
          }
        }
        ul {
          display: flex;
          flex-wrap: wrap;
          li.brand {
            height: 180px;
            a {
              align-items: flex-start;
              img {
                width: 120px;
                height: 160px;
              }
              .info {
                p {
                  margin-top: 8px;
                }
                .place {
                  color: #999;
                }
              }
            }
          }
          li {
            width: 310px;
            height: 120px;
            margin-right: 15px;
            margin-bottom: 15px;
            border: 1px solid #eee;
            border-radius: 4px;
            background: #fff;
            &:nth-child(3n) {
              margin-right: 0;
            }
            a {
              display: flex;
              width: 100%;
              height: 100%;
              align-items: center;
              padding: 10px;
              &:hover {
                background: #e3f9f4;
              }
              img {
                width: 95px;
                height: 95px;
              }
              .info {
                padding-left: 10px;
                line-height: 24px;
                width: 190px;
                .name {
                  font-size: 16px;
                  color: #666;
                }
                .desc {
                  color: #999;
                }
                .price {
                  font-size: 22px;
                  color: @priceColor;
                  i {
                    font-size: 16px;
                  }
                }
              }
            }
          }
        }
      }
      &:hover {
        .layer {
          display: block;
        }
      }
    }
  }
  .xtx-skeleton {
    animation: fade 1s linear infinite alternate;
  }
  @keyframes fade {
    from {
      opacity: 0.2;
    }
    to {
      opacity: 1;
    }
  }
}
</style>
